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Shahid
Shahid, Technician
Category: TV
Satisfied Customers: 9465
Experience:  I have been repairing electronic gear since 1993 as a qualified Sony tech
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LG 60 PN 5300 UF TV COMES ON AND GOES OFF AFTER 1 MINUTE. I

Customer Question

LG 60 PN 5300 UF TV COMES ON AND GOES OFF AFTER 1 MINUTE. I HAVE ALREADY
REPLACED POWER AND IT STILL DOES THE SAME.
Submitted: 1 year ago.
Category: TV
Expert:  Shahid replied 1 year ago.

Hello, I'm Shahid, I'll be happy to assist you. I need additional info of TV symptoms to troubleshoot the problem.
This is not an answer so do not rate it.

- Does TV display normal picture during that one minute?

- Do you see any distortion/ abnormality in picture before TV shuts Off?

Thanks.

Customer: replied 1 year ago.
Displays normal. And no distortion
Expert:  Shahid replied 1 year ago.

OK, how old is the TV and how long it have had this problem?

- Does it act the same way every time when power it up?

Customer: replied 1 year ago.
2 years. Problem started 3 weeks ago.
Expert:  Shahid replied 1 year ago.

- Does it act the same way now every time when power it up OR some times stay On?

Customer: replied 1 year ago.
Every time
Expert:  Shahid replied 1 year ago.

Thanks for the info, it seems either logic control board or main board internal failure, I would swap logic control board as first thing to see if it fix the problem or the main board is culprit and need to be replaced. Please check following board supplier link to get required logic control board for this TV.

http://www.shopjimmy.com/catalogsearch/result/?q=60PN5300UF

I trust my input will help you out. Please feel free to respond if you have any additional questions.
A positive rating to answer would be greatly appreciated, please click on smiley face/star on this page then click submit/finish button so I can get credit on website for my work.
Regards,

Shahid.